What is the primary responsibility of the Data Link Layer in the OSI model?

Reliable node-to-node data transfer within a local network.

The MAC sub-layer of the Data Link Layer is responsible for ______.

Frame addressing using MAC addresses.

True or False: The Data Link Layer can perform end-to-end communication across multiple networks.

False. The Data Link Layer operates only within a local network.

Which error control technique uses polynomial division for error detection?

Cyclic Redundancy Check (CRC).

Riddle: I’m a method that allows multiple frames to be sent before an acknowledgment, but I can lead to retransmitting all subsequent frames if one is lost. What am I?

Go-Back-N ARQ.

What is the purpose of the Sliding Window technique in flow control?

To allow multiple frames to be sent before requiring an acknowledgment.

Fill in the blank: The ______ protocol is used for direct connections and supports authentication and error detection.

Point-to-Point Protocol (PPP).

Which protocol is known for managing shared media access in Ethernet networks?

Carrier Sense Multiple Access with Collision Detection (CSMA/CD).

True or False: The Data Link Layer is responsible for routing packets between different networks.

False. The Data Link Layer does not handle routing; that is the responsibility of the Network Layer.

What is the function of the Address Resolution Protocol (ARP)?

To map IP addresses to physical MAC addresses.